baber/WOPTO huggingface dataset:
Patent GB-486790-A (GB)
Title: Apparatus for sharpening the knives of plush and velvet looms
IPC: B24B3/36
Filed: 1936-12-12
Abstract: 486,790. Sharpening rotary knives. TRUJEN, W. Dec. 12, 1936, No. 34146. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 19, 1937.] [Class 60] A device for sharpening a rotating knife of a plush or velvet loom, comprises a member a adjustably secured to the reciprocating loom batten and carrying a roller b which engages a lever c pivoted in a casing n secured by a plate m to the loom, thereby rocking the lever against the action of a spring d, and, through a pawl k- and gear-wheels j, u, e, rotating a spindle connected by a ball-and-socket joint to the spindle p of a grinding-wheel f. The outer end of the spindle p runs in a recess in a cover member h and is engaged by the arms g of a hair-pin shaped spring ; by angular adjustment of the cover h about a pivot s the wheel f may be set at any desired inclination. The gear-wheel j is braked by an adjustable spring l and the effective length of the spring arms g may be varied by adjustment of a block i along the cover h, the arms g passing through holes in the block. The stroke of the lever c is regulated by adjustment of a screw abutment.
Patent GB-1112946-A (GB)
Title: Improvements relating to nuclear reactors
Inventor: ASHCROFT DAVID JOHN
IPC: G21C3/34
Filed: 1965-08-10
Abstract: 1,112,946. Fuel elements. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. 20 July, 1966 [10 Aug., 1965], No. 34251/65. Heading G6C. A grid structure for a nuclear reactor fuel assembly comprises a spacer plate with resilient inserts captive in apertures in the spacer plate, the inserts being such as to locate fuel pins to be passed through the apertures with clearance between the pins and the bounding walls of the apertures allowing for flow of coolant over the pins in passage through the apertures. One form of insert, as shown in Figs. 3 and 4, comprises a strip 21 of spring steel formed into a closed loop with three circumferentially equi-spaced re-entrant lobes 22 which in axial cross-section are slightly barrel-shaped. The insert is held captive in a hole in the spacer plate by way of three sets of tabs circumferentially equi-spaced around the insert between the lobes 22, each set comprising upper and lower bend-over tabs 23 which do not however fold flat against the spacer plate but allow some axial movement to reduce fretting of the inserts on the pins during thermal cycles. A modified form of insert has no tabs and is used in conjunction with a modified form of spacer plate provided with annular recesses in the peripheral walls of the holes, the inserts being captive in the holes by virtue of their engaging in the recesses. These recesses are conveniently formed by using a laminated construction for the plate. A fuel assembly is described which comprises burnable poison pins, control pins and fuel pins endsupported in spaced array and penetrating intermediate their ends grid structures as described above. The fuel pins each comprise a spring-loaded stack of ceramic (e.g. UO 2 ) fuel pellets within a metallic sheath and the burnable poison pins each comprise a spring- loaded column of, e.g. zirconium boridecontaining material within a metallic sheath. The fuel pins and the burnable poison pins are suspended from an upper support plate. The control pins each comprise a spring-loaded stack of slugs containing neutron-absorber material, e.g. boron, within a metallic sheath and are suspended from a control pin carrier in an upper end fitting above the upper support plate; the control pins are movable with clearance in guide tubes by way of the carrier and an associated drive mechanism.
Patent GB-1005298-A (GB)
Title: Ground effect vehicle
Inventor: HARDY DEREK JAMES
IPC: B60V1/00
Filed: 1963-08-30
Abstract: 1,005,298. Air-cushion vehicles. WESTLAND AIRCRAFT Ltd. Aug. 10, 1964 [Aug. 30, 19631, No. 34333/63. Headings B7A and B7K. An amphibious air cushion vehicle includes a platform or raft of sufficient positive buoyancy to support the whole vehicle and its load on water, extendable floats capable of buoyantly supporting the platform or raft clear of the water and extending in a fore-and-aft direction of the vehicle, and means arranged to maintain an air cushion beneath the vehicle when it is operating as a ground effect vehicle, the platform being arranged to carry power plant and its fuel, propulsion means driven by the power plant, and blower means, driven by the power plant, for maintaining the air cushion. A buoyant platform 1 carries a superstructure which forms a control cabin 9 and provides a landing platform 10 for a helicopter, and houses a power plant for driving air propellers mounted on fins 7 and fans for delivering air to peripheral nozzles formed in a collapsible peripheral skirt (not shown). The undersurface of the hull is recessed to accommodate a pair of collapsed floats which may be inflated to the form shown at 2 to buoyantly support the hull 1 clear of the water line indicated at 14. The floats may be constructed as described in Specification 1,003,357, and when operating as a displacement vessel the vehicle is propelled by retractable propellers 12. The floats 2 may be used as sidewalls to assist in containing the cushion when the vehicle is operating as an air-cushion vehicle.
Patent GB-413199-A (GB)
Title: Improvements in cooling or heating apparatus for beer or other beverage contained incasks
IPC: F25D31/00
Filed: 1933-12-07
Abstract: 413,199. Heating or cooling beer &c. MURRAY, T. S., and MURRAY, F. L. S., 42, Lower Road, Rotherhithe, London. Dec. 7, 1933, No. 34448. Addition to 398,042. [Classes 29 and 64 (i).] The cooling-liquid return pipe 5 described in the parent Specification is provided with a water jacket 31 heated by a burner 32 so that the beer &c. in the casks may be heated in cold weather. The jacket may be placed around the supply pipe 4 or, alternatively, the liquid in the reservoir 24 may be heated, the jacket being dispensed with.
Patent GB-171910-A (GB)
Title: Improved scissors
IPC: B26B13/00
Filed: 1920-12-07
Abstract: 171,910. Hawksley, G. W. Dec. 7, 1920. Folding pocket scissors.-The bows of a pair of scissors, for the pocket or a case, are formed of coiled springs C fixed at one end to lugs A at the ends of the scissor shanks and passing through slots in cases B pivoted to the upper end of the scissor shanks, the other ends of the springs being fixed to the outer ends of the cases. When closed to protect the scissor points, the cases are secured by a shackle D, and the springs lie in tension along the edges of the shanks. The cases, when opened, form extensions of the shanks.
Patent GB-170219-A (GB)
Title: Improvements in kettles for domestic use
IPC: A47J27/21
Filed: 1920-12-07
Abstract: 170,219. Williamson & Sons, Ltd., G. H., and Thomas, R. S. Dec. 7, 1920. Kettles; handles; spouts; vessels specially shaped for placing together.-A lidless kettle has a detachable handle c the ends of which are formed with keyhole slots c<2> adapted to take over and be engaged by studs k on the body. The spout and filling-opening b is of such size as to permit the detached handle to be placed within the body. The spout, which is preferably triangular or V-shaped, is so dimensioned that it does not' interfere with the packing of a number of the kettles in contact in rows arranged side by side. A hinged cover d for the spout is provided with a thumb-piece h also acting as a stop, or alternatively with a depending lip in front. A vent-hole to which may be attached a whistling device is provided at the top of the kettle.
Patent GB-942497-A (GB)
Title: Inorganic permselective membrane
IPC: C08J5/22
Filed: 1961-09-27
Abstract: A porous glass ion-exchange membrane resistant to radiation damage and deterioration comprises alumina-silicate powder particles compressed with and incipiently fused with low melting-point glass particles, i.e. glass particles having a melting-point below that of the alumina-silicate particles.ALSO:An electrodialysis process for removing radio-active waste material is characterized by passing said solution through a porous inorganic ion-exchange membrane comprising alumina-silicate ion-exchange powder particles compressed with and incipiently fused with low melting point glass particles, i.e. glass particles having a melting-point below the melting-point of the alumina-silicate particles.  An example illustrates the separation of caesium-137 from aqueous nitric acid solution.
Patent GB-1223582-A (GB)
Title: Process for production of epoxy resin/polyamide mouldings and coatings
IPC: C08G69/26
Filed: 1968-07-19
Abstract: 1,223,582. Laminates. SCHOLVENCHEMIE A.G. 19 July, 1968 [21 July, 1967], No. 34648/68. Heading B5N. [Also in Divisions B2 and C3]  A laminate is prepared by hot pressing a linen fabric between foils of an epoxy resin composition cured with a polyamide in which up to 100% of the amine component is 2,2,4- and/or 2,4,4-trimethylhexamethylene diamine. In an example the epoxy resin is a glycidyl ether of bisphenol A and the polyamide prepared from 42À5 parts by wt. of adipic acid, 34À5 parts of nonomethylenediamine and 23 parts of 2,2,4- trimethylhexamethylene diamine.
Patent GB-511255-A (GB)
Title: Improved means for ventilating the motor compartment in vehicles
IPC: B60K11/08
Filed: 1938-11-29
Abstract: 511,255. Cooling motors. ZAVODY RING- HOFFER-TATRA AKCIOVA SPOLECNOST. Nov. 29, 1938, No. 34696. Convention date, Dec. 3, 1937. [Class 79 (iii)] Ventilating means for a rear engine compartment in a streamlined motor vehicle comprises an opening at the extreme end of the body controlled by a parti-cylindrical valve member or shutter 2 operated by manual control or automatically by a flexible connection 3 to the accelerator &c.
Patent GB-1008544-A (GB)
Title: A sprayer for salt, spice and the like
IPC: A47G19/24
Filed: 1962-09-12
Abstract: 1,008,544. Container closures. A. W. HOWE. Sept. 12, 1962 [Sept. 15, 1961], No. 34797/62. Heading B8T. [Also in Division B2] A dispenser for salt, spice or similar substances comprises a container open at its upper end and having side and bottom walls and a lid which closes the open upper end of the container and is formed over part of its edge with notches extending through the thickness of the lid so as to define teeth therein and co-operating with the side walls of the container to constitute a row of dispensing apertures. Fig. 2 shows notches 5 and teeth 6 formed in a row along part of the edge of the lid 3. The periphery of the lid mates with the inner surface of the container 1 and the top edge of the container has grooves into which the teeth 6 fit. The inner ends of the notches 5 are cut back at an angle, α, into the lid 3 so that, when the spinkler is tilted, Fig. 3, the dispensing apertures present widened openings to the contents. The angle a depends on the substance used in the sprinkler and is normally about 45-50 degrees. Semicircular projections 10 from the lid 3 fit into grooves in the top edge of the container and form pivots about which the lid may be tilted to refill the container. To prevent accidental removal of the lid, the wall of the container at the side opposite the apertures may have a beading which fits over the top of the lid. The container may be of polythene and may fit in a cylindrical cover 2 of stiff material, e.g. wood or metal. An alternative manner of holding the lid in position is shown in Fig. 10, when the lid 43 has a lug 42, opposite the row of apertures 45, which fits in a recess 44 in the top edge of the container. In a modification, Figs. 6 and 7, the ends of the teeth 26 bear against the inside surface of the wall of the container 21 and the lid 23, instead of fitting into the container, rests in a groove extending round most of the periphery of the container and has a flange 22 which engages a stepped-in position of the outer surface of the container. Another modification, Fig. 9, enables the lid to be placed on the container in any position of rotation since the top edge of the container 31 is not recessed and the lid 33 has a flange 32 which fits into the container and a ring 34 which fits on the top edge of the container. In this modification also the ends of the teeth bear against the inside of the wall of the container 31, the flange 32 and ring 34 being cut away to expose grooves 35 in the lid which form the dispensing apertures. Other shapes for the container, e.g. prismatic, conical or part pyramidal, are mentioned.
Patent GB-1526117-A (GB)
Title: Method of and apparatus for converting a plural-bit digital signal to a pulse width modulated signal
IPC: H04N5/44
Filed: 1976-08-20
Abstract: 1526117 Digital to analogue converter SONY CORP 20 Aug 1976 [28 Aug 1975] 34829/76 Heading H3H In a d-a converter the digital word to be converted is divided by 2<SP>n</SP> and the most significant x-n bits are converted to a p.w.m. signal in each of 2<SP>n</SP> time slots; dependent on the value of the 1.s. n bits the value of certain of the p.w.m. signals may be increased, the output may be then filtered. The individual p.w.m. signals are generated (Fig. 3) during the time taken by a clock counterA 1 #A 12  to reach equality with the m.s. digital bits B 3 #B 14  the increments are added by delaying the equality pulse by 1 clock period in selected time slots, dependent on the value of the 1.s. digits B 1 , B 2  as derived by AND gates 951#4. The converter finds application (Fig. 1) in a channel selection system, for F.M. or television receivers, where a varactor is controlled by a voltage derived from channel codes B 1-14  selected from memory 50 by channel select switches S 1-16 . Means for programming the MNOS memory are described whereby the digital code generated in counter 40 by coarse and fine (rapid and slow) up/down count pulses to tune in a derived channel is written into selected addresses.
Patent GB-212670-A (GB)
Title: Improvements in or relating to hydraulic power transmission apparatus
IPC: F16H39/02
Filed: 1922-12-22
Abstract: 212,670. Ingoldby, M. K. Dec. 22, 1922. Hydraulic transmission of power. - Power transmission apparatus for driving vehicles, spindles &c. comprises a variable output pump B, of the revolving cylinder variable stroke piston type, connected to one or more motor units C of the gear, vane, or other non-piston type by conduits b, b<1>. Specification 208,591 is referred to.
Patent GB-342030-A (GB)
Title: Pipe slips for use in connection with well-drilling operations
IPC: E21B19/10
Filed: 1929-11-15
Abstract: 342,030. Borehole apparatus. NATIONAL SUPPLY CO. OF DELAWARE 120, Broadway, New York, U.S.A. Nov. 15, 1929, No. 35001. Convention date, May 22. [Class 85.] Pipe slips for use in well drilling operations comprise two slip segments detachably connected together at their lateral edges, and a liner secured to one of said segments for holding the connecting means engaged. Slips 1, 2 each comprise a cored-out cast body 4 with a bracing bridge 6 and a tapered exterior 5 to fit the tapered bore of the rotary table, elevator &c. ; an inclined shoulder 7 is engaged by the end of a liner 9 provided with inclined serrations 11 for holding a pipe &c. and vertical serrations 12 for use in rotating a pipe &c. The liner is held against transverse movement by a key 13 welded to the body 4 and is locked by means of a pin 16 which is held by means of a vertical pin 18 engaging a recess 19 in the pin 16 ; a cotter secures the pin 18. The slips 1, 2, also have engaging tongues 22, 23, the liner 9 of the slip 1 holding the tongues from disengagement while allowing limited pivotal, transverse and vertical movement ; the vertical movement is limited by a projection 31 and shoulder 33 on the tongue 23 engaging shoulders 32, 34 on the tongue 22. A single handle 27 is provided for each pair of slips, the handle having horizontal trunnions 28 fitting in bosses on the slips.
Patent GB-521885-A (GB)
Title: Improvements in electrical musical instruments
IPC: G10H1/057
Filed: 1938-12-01
Abstract: 521,885. Electrical musical instruments. AXE, E. C. (Hammond, L.). Dec. 1, 1938, No. 35023. [Class 88 (ii)] In an electrical musical instrument wherein alternating currents of musical tone frequencies are synthesised into timbre-possessing notes, gradual attack and decay are obtained on actuating a note-selecting key or the like, by controlling the potential applied to a control grid or-electrode of a vacuum tube in the output circuit. In Fig. 1, a pedal-key C 0 # makes contacts 46, 48 ... 58 on two bus-bars 66, 72 transmitting currents representing the partials of the note from generators 2, 13 ... 37 to taps on the primary 76 of a transformer connected to a control grid 84 of a pentode tube 86 in the pre-amplifier 88. A battery 92 normally maintains the grid 84 at a relatively high negative potential through a high resistance 90. Depression of key C 0 #, however, also makes a contact at 60, connecting the grid to earth at 94 through a high resistance 96 (of lower value than resistance 90). The switches 60 of the pedal keys are in parallel, so that on depression of any key the potential bias on the grid is gradually reduced, and on release the potential is gradually raised. The resistances 90, 96 may be adjustable. A single switch 60 may be used closed by a bail which extends the length of the keyboard and is operated by each pedal-key. The switch 60 closes after and reopens before the partial switches, opening of the partial switches being further delayed, if desired, by a dash-pot. The manuals are connected to the output transformer 108. In Fig. 2 (not shown), depression of a pedal-key closes a similar switch 60 and connects a battery through a high resistance to the output of a push-pull pre-amplifier, the use of which prevents key-clicks from switch 60. The switch 60 may alternatively control the potential of the plate of a single-sided preamplifier. Specification 454,502 is referred to.
Patent GB-1115824-A (GB)
Title: Improvements in or relating to closures for containers
IPC: B65D41/04
Filed: 1966-08-04
Abstract: 1,115,824. Caps for bottles &c. CONTINENTAL CAN CO. Inc. 4 Aug., 1966 [1 Sept., 1965], No. 35032/66. Heading B8T. A method of capping a bottle &c. 19 so as to form threads permitting removal and reapplication of the cap 10, comprises lining the cap with a sealing gasket 16 of a material which can first flow and later set, applying the cap to a bottle &c. neck 20 with a press-on motion and a simultaneous turning motion, so that screw-threads 25 around the bottle &c. neck bite into the gasket and form threads in it, and then curing the gasket, e.g. by heat or by the lapse of time, so that it sets hard. The gasket 16 may be in the form of a ring extending round the inside of the cap skirt and the outer periphery of the cap crown 11, or alternatively it may extend right across the inside of the cap crown. A ring-shaped stacking depression 15 is formed round the outer periphery of the cap crown 11. Alternatively, instead of having a cap skirt 12 of frusto-conical shape, the cap skirt may be cylindrical. Reference has been directed by the Comptroller to Specification 1,044,419.
Patent GB-1186155-A (GB)
Title: Solid State Device
Inventor: RALEIGH DOUGLAS OVERHOLT
IPC: H01G9/155
Filed: 1968-07-23
Abstract: 1,186,155. Capacitive device; circuit assemblies. NORTH AMERICAN ROCKWELL CORP. 23 July, 1968, No. 35185/68. Headings H1M and H1R. A capacitive device comprises a solid ionic conductor 12, a reversible electrode 10 contacting one surface thereof and accepting or donating ions depending on the potential difference between it and the ionic conductor, and a second electrode 14 chemically non- reactive with the ionic conductor, the interface functioning as a capacitor when an appropriate biasing voltage blocks ionic discharge thereat. The reversible electrode may be silver in contact with silver bromide or other silver halide or complex halide, or an iodine-graphite mixture in contact with silver iodide or complex iodide or potassium iodide, copper halide or lead halide, or copper in contact with copper halide or complex halide, or lead in contact with lead halide. The ionic conductor may include dopants, e.g. cadmium bromide. The inert electrode is selected from gold, silver, platinum, palladium, copper and carbon depending on the ionic conductor. The device as illustrated may be constructed by applying electrodes to a pellet of the ionic conductor. Alternatively, thin-film deposition techniques may be employed. The device may be encapsulated with inert material. It provides a series RC network in which the capacitance and resistance can be independently selected, the resistance being related to the thickness of the ionic conductor.
Patent GB-630983-A (GB)
Title: Improvements in ribbon guide for typewriter or like machine
IPC: B41J35/04
Filed: 1946-11-27
Abstract: 630,983. Typewriters &c. ROYAL TYPEWRITER CO., Inc. Nov. 27, 1946, No. 35247. Convention date, May 2. [Class 100 (iv)] A ribbon guide for a typewriter or like machine includes a guide proper 2, Fig. 3, comprising two spaced parts 3, 4 forming the sides of a guide slot 5, a channel-shaped ribbon latch or retainer 6 comprising opposed flanges 7, 8, Fig. 6, and a connecting portion 9, and means 13 pivotally mounting the latch on one of the guide parts with the flanges on opposite sides thereof, the latch being movable to open position for insertion of a ribbon into the slot and to a closed position where the latch extends across the slot with the flanges frictionally engaging the other guide part and disposed on opposite sides thereof. The parts 3, 4 are in planes inclined to one another, and the latch 6 is correspondingly bent, so that the friction is greater when the flanges are beginning to pass over the upper ends of the part 4, and the flanges have to be slightly sprung to open the latch. Opening movement is limited by abutment of an edge 15 with the part 3, and a finger-piece 17 is provided. A pair of such guides proper 2 may be used for a ribbon vibrator A, or one such guide may be used with the reversing mechanism on each ribbon spool. Specifications 630,982, 630,984 and 630,985 are referred to.
Patent GB-505929-A (GB)
Title: Improvements in or relating to metal to glass seals
IPC: C03C27/02
Filed: 1937-12-21
Abstract: 505,929. Alloys. FERRANTI, Ltd., and DAWSON, J. Dec. 21, 1937, No. 35332. [Class 82 (i)] Alloys for making vacuum-tight seals with glass consist of iron with 24-32 per cent of nickel, 13-21 per cent of cobalt, and 0À25-0À75 per cent of vanadium.
Patent GB-800645-A (GB)
Title: Improvements in or relating to steroids and the manufacture thereof
IPC: C07J1/00
Filed: 1956-11-19
Abstract: The invention comprises compounds of the formula: <FORM:0800645/IV (b)/1> wherein R is hydrogen or methyl and alkyl contains 1-8 carbon atoms inclusive and a process which comprises oxidizing the 11b -hydroxy group to a keto group in an 11b ,17b -dihydroxy-17a  - alkylandrostane - 3 - one or an 11b ,17b -dihydroxy - 17a  - alkyl - 19 - norandrostane - 3-one, or a 17b -monoester thereof, with an oxidizing agent to produce the corresponding 17b -hydroxy - 17a  - alkylandrostane - 3,11 - dione or 17b  - hydroxy - 17a  - alkyl - 19 - norandrostane - 3,11 - dione or a 17b  - monoester thereof.  As oxidizing agents there may be used chromic acid, potassium permanganate, potassium dichromate, N-bromacetamide, N-chlorosuccinimide and t-butyl hypochloride, preferably in a solvent such as acetic acid, chloroform, or t-butyl alcohol.  The alkyl group in 17-position may be ethyl, propyl, isopropyl, butyl, sec.-butyl, amyl, hexyl, heptyl and octyl.  The 17-acylates, e.g. formate, propionate, trimethylacetate, furoate, a - or b -cyclohexyl propionate, benzoate, phenylacetate, a - or b -cyclopentylpropionate, a - or b -phenylpropionate, methylbenzoate, a - or b -furylacrylate, valerate and methacrylate, are obtained by acylation with the appropriate acid, acid anhydride or acid chloride.  Examples disclose the production of 17b  - hydroxy - 17a  - methylandrostane - 3,11, dione, 17b  - hydroxy - 17a  - methyl - 19 - norandrostane-3,11-dione and the acetates thereof.